Subtraction with regrouping

Front

What is subtraction with regrouping?

Back

Subtraction with regrouping is a method used to subtract numbers when the top digit is smaller than the bottom digit in any column, requiring borrowing from the next column.

Front

How do you perform subtraction with regrouping?

Back

To perform subtraction with regrouping, start from the rightmost column, borrow from the next column if necessary, and then subtract each column from right to left.

Front

What does it mean to 'borrow' in subtraction?

Back

'Borrowing' in subtraction means taking 1 from the next higher place value to make the current digit larger, allowing for the subtraction to be performed.

Front

In the problem 43 - 16, how do you handle the subtraction of 3 - 6?

Back

Since 3 is less than 6, you need to borrow 1 from the 4 in the tens place, making it 3, and adding 10 to the 3 in the ones place, making it 13. Then, you can subtract 13 - 6 = 7.

Front

What is the result of 57 - 45?

Back

The result of 57 - 45 is 12.

Front

Explain the process of regrouping in the problem 86 - 50.

Back

In 86 - 50, you cannot subtract 0 from 6, so you keep the 8 in the tens place and subtract 5 from it, making it 7. Then, you subtract 6 - 0 = 6 and 7 - 5 = 2, resulting in 36.

Front

What is the importance of place value in subtraction?

Back

Place value is crucial in subtraction as it determines the value of each digit in a number, guiding how to borrow and subtract correctly.

Front

How do you check your subtraction answer?

Back

To check your subtraction answer, you can add the result to the subtracted number and see if it equals the original number.

Front

What is the answer to 29 - 11?

Back

The answer to 29 - 11 is 18.

Front

What is the first step in solving a subtraction problem with regrouping?

Back

The first step is to line up the numbers by their place values (ones, tens, hundreds) and start from the rightmost column.